Fossil fuels has been used more in the existing world. Why?
1 answer:
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Answer:(a)2631.46 N
(b)1605.51 N
Explanation:
Assuming there is a cable between crate and worker
Given
weight of worker
Weight of crate
mass of worker
mass of crate
acceleration of system
Tension in the wire carrying Worker
(b)Tension in the string above
Answer:
`1. charge Q, on the capacitor increases, while the current will decrease
2. τ = t = secs
Explanation:
1. consider RC of a circuit to be am external source
voltage across the circuit is given as
v =v₀(1 - )
where v = voltage
v₀ = peak voltage
t = time taken
τ= time constant
as the charge across the capacitor increases, current decreases
the charge across the circuit is given as
Q= Q₀(1 - )
charge Q is inversely proportional to the current I
hence the charge across the circuit increases
2. τ = RC
unit of time constant, τ,
= Ω × F
= ˣ
=
=
τ = t = secs